A review of Neoheterocotyle (Monogenea: Monocotylidae).

The monocotylid genus Neoheterocotyle Hargis, 1955 is reviewed and the type species N. inpristi Hargis, 1955 is redescribed and illustrated. Neoheterocotyle ruggierii Cheung and Nigrelli, 1983 is synonymized with N. inpristi. Horricauda Tripathi, 1959 is synonymized with Neoheterocotyle, and the species previously assigned to Horricauda are transferred to Neoheterocotyle as N. bychowskyi (Timofeeva, 1981) n. comb., N. forficata (Timofeeva, 1981) n. comb., N. nagibinae (Timofeeva, 1981) n. comb., N. rhinobatidis (Young, 1967) n. comb., N. rhynchobatis (Tripathi, 1959) n. comb., and N. trilobata (Timofeeva, 1981) n. comb. A key to the species of the genus is included. Although most workers attribute Monocotylinae to Gamble, 1896, the correct authority is Taschenberg, 1879.